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325 lines
12 KiB
325 lines
12 KiB
// |
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// Copyright (c) 2002--2010 |
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// Toon Knapen, Karl Meerbergen, Kresimir Fresl, |
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// Thomas Klimpel and Rutger ter Borg |
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// |
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// Distributed under the Boost Software License, Version 1.0. |
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// (See accompanying file LICENSE_1_0.txt or copy at |
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// http://www.boost.org/LICENSE_1_0.txt) |
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// |
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// THIS FILE IS AUTOMATICALLY GENERATED |
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// PLEASE DO NOT EDIT! |
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// |
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#ifndef BOOST_NUMERIC_BINDINGS_BLAS_LEVEL2_GEMV_HPP |
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#define BOOST_NUMERIC_BINDINGS_BLAS_LEVEL2_GEMV_HPP |
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#include <boost/assert.hpp> |
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#include <boost/numeric/bindings/begin.hpp> |
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#include <boost/numeric/bindings/blas/detail/default_order.hpp> |
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#include <boost/numeric/bindings/has_linear_array.hpp> |
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#include <boost/numeric/bindings/is_mutable.hpp> |
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#include <boost/numeric/bindings/remove_imaginary.hpp> |
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#include <boost/numeric/bindings/size.hpp> |
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#include <boost/numeric/bindings/stride.hpp> |
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#include <boost/numeric/bindings/trans_tag.hpp> |
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#include <boost/numeric/bindings/value_type.hpp> |
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#include <boost/static_assert.hpp> |
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#include <boost/type_traits/is_same.hpp> |
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#include <boost/type_traits/remove_const.hpp> |
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// |
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// The BLAS-backend is selected by defining a pre-processor variable, |
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// which can be one of |
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// * for CBLAS, define BOOST_NUMERIC_BINDINGS_BLAS_CBLAS |
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// * for CUBLAS, define BOOST_NUMERIC_BINDINGS_BLAS_CUBLAS |
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// * netlib-compatible BLAS is the default |
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// |
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#if defined BOOST_NUMERIC_BINDINGS_BLAS_CBLAS |
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#include <boost/numeric/bindings/blas/detail/cblas.h> |
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#include <boost/numeric/bindings/blas/detail/cblas_option.hpp> |
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#elif defined BOOST_NUMERIC_BINDINGS_BLAS_CUBLAS |
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#include <boost/numeric/bindings/blas/detail/cublas.h> |
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#include <boost/numeric/bindings/blas/detail/blas_option.hpp> |
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#else |
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#include <boost/numeric/bindings/blas/detail/blas.h> |
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#include <boost/numeric/bindings/blas/detail/blas_option.hpp> |
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#endif |
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namespace boost { |
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namespace numeric { |
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namespace bindings { |
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namespace blas { |
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// |
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// The detail namespace contains value-type-overloaded functions that |
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// dispatch to the appropriate back-end BLAS-routine. |
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// |
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namespace detail { |
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#if defined BOOST_NUMERIC_BINDINGS_BLAS_CBLAS |
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// |
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// Overloaded function for dispatching to |
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// * CBLAS backend, and |
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// * float value-type. |
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// |
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template< typename Order, typename Trans > |
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inline void gemv( const Order, const Trans, const int m, const int n, |
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const float alpha, const float* a, const int lda, const float* x, |
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const int incx, const float beta, float* y, const int incy ) { |
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cblas_sgemv( cblas_option< Order >::value, cblas_option< Trans >::value, |
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m, n, alpha, a, lda, x, incx, beta, y, incy ); |
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} |
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// |
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// Overloaded function for dispatching to |
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// * CBLAS backend, and |
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// * double value-type. |
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// |
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template< typename Order, typename Trans > |
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inline void gemv( const Order, const Trans, const int m, const int n, |
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const double alpha, const double* a, const int lda, const double* x, |
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const int incx, const double beta, double* y, const int incy ) { |
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cblas_dgemv( cblas_option< Order >::value, cblas_option< Trans >::value, |
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m, n, alpha, a, lda, x, incx, beta, y, incy ); |
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} |
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// |
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// Overloaded function for dispatching to |
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// * CBLAS backend, and |
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// * complex<float> value-type. |
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// |
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template< typename Order, typename Trans > |
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inline void gemv( const Order, const Trans, const int m, const int n, |
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const std::complex<float> alpha, const std::complex<float>* a, |
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const int lda, const std::complex<float>* x, const int incx, |
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const std::complex<float> beta, std::complex<float>* y, |
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const int incy ) { |
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cblas_cgemv( cblas_option< Order >::value, cblas_option< Trans >::value, |
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m, n, &alpha, a, lda, x, incx, &beta, y, incy ); |
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} |
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// |
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// Overloaded function for dispatching to |
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// * CBLAS backend, and |
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// * complex<double> value-type. |
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// |
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template< typename Order, typename Trans > |
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inline void gemv( const Order, const Trans, const int m, const int n, |
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const std::complex<double> alpha, const std::complex<double>* a, |
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const int lda, const std::complex<double>* x, const int incx, |
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const std::complex<double> beta, std::complex<double>* y, |
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const int incy ) { |
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cblas_zgemv( cblas_option< Order >::value, cblas_option< Trans >::value, |
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m, n, &alpha, a, lda, x, incx, &beta, y, incy ); |
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} |
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#elif defined BOOST_NUMERIC_BINDINGS_BLAS_CUBLAS |
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// |
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// Overloaded function for dispatching to |
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// * CUBLAS backend, and |
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// * float value-type. |
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// |
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template< typename Order, typename Trans > |
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inline void gemv( const Order, const Trans, const int m, const int n, |
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const float alpha, const float* a, const int lda, const float* x, |
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const int incx, const float beta, float* y, const int incy ) { |
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BOOST_STATIC_ASSERT( (is_same<Order, tag::column_major>::value) ); |
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cublasSgemv( blas_option< Trans >::value, m, n, alpha, a, lda, x, incx, |
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beta, y, incy ); |
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} |
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// |
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// Overloaded function for dispatching to |
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// * CUBLAS backend, and |
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// * double value-type. |
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// |
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template< typename Order, typename Trans > |
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inline void gemv( const Order, const Trans, const int m, const int n, |
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const double alpha, const double* a, const int lda, const double* x, |
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const int incx, const double beta, double* y, const int incy ) { |
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BOOST_STATIC_ASSERT( (is_same<Order, tag::column_major>::value) ); |
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cublasDgemv( blas_option< Trans >::value, m, n, alpha, a, lda, x, incx, |
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beta, y, incy ); |
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} |
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// |
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// Overloaded function for dispatching to |
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// * CUBLAS backend, and |
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// * complex<float> value-type. |
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// |
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template< typename Order, typename Trans > |
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inline void gemv( const Order, const Trans, const int m, const int n, |
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const std::complex<float> alpha, const std::complex<float>* a, |
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const int lda, const std::complex<float>* x, const int incx, |
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const std::complex<float> beta, std::complex<float>* y, |
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const int incy ) { |
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BOOST_STATIC_ASSERT( (is_same<Order, tag::column_major>::value) ); |
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cublasCgemv( blas_option< Trans >::value, m, n, alpha, a, lda, x, incx, |
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beta, y, incy ); |
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} |
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// |
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// Overloaded function for dispatching to |
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// * CUBLAS backend, and |
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// * complex<double> value-type. |
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// |
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template< typename Order, typename Trans > |
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inline void gemv( const Order, const Trans, const int m, const int n, |
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const std::complex<double> alpha, const std::complex<double>* a, |
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const int lda, const std::complex<double>* x, const int incx, |
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const std::complex<double> beta, std::complex<double>* y, |
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const int incy ) { |
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BOOST_STATIC_ASSERT( (is_same<Order, tag::column_major>::value) ); |
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cublasZgemv( blas_option< Trans >::value, m, n, alpha, a, lda, x, incx, |
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beta, y, incy ); |
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} |
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#else |
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// |
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// Overloaded function for dispatching to |
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// * netlib-compatible BLAS backend (the default), and |
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// * float value-type. |
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// |
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template< typename Order, typename Trans > |
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inline void gemv( const Order, const Trans, const fortran_int_t m, |
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const fortran_int_t n, const float alpha, const float* a, |
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const fortran_int_t lda, const float* x, const fortran_int_t incx, |
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const float beta, float* y, const fortran_int_t incy ) { |
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BOOST_STATIC_ASSERT( (is_same<Order, tag::column_major>::value) ); |
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BLAS_SGEMV( &blas_option< Trans >::value, &m, &n, &alpha, a, &lda, x, |
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&incx, &beta, y, &incy ); |
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} |
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// |
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// Overloaded function for dispatching to |
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// * netlib-compatible BLAS backend (the default), and |
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// * double value-type. |
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// |
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template< typename Order, typename Trans > |
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inline void gemv( const Order, const Trans, const fortran_int_t m, |
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const fortran_int_t n, const double alpha, const double* a, |
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const fortran_int_t lda, const double* x, const fortran_int_t incx, |
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const double beta, double* y, const fortran_int_t incy ) { |
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BOOST_STATIC_ASSERT( (is_same<Order, tag::column_major>::value) ); |
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BLAS_DGEMV( &blas_option< Trans >::value, &m, &n, &alpha, a, &lda, x, |
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&incx, &beta, y, &incy ); |
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} |
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// |
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// Overloaded function for dispatching to |
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// * netlib-compatible BLAS backend (the default), and |
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// * complex<float> value-type. |
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// |
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template< typename Order, typename Trans > |
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inline void gemv( const Order, const Trans, const fortran_int_t m, |
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const fortran_int_t n, const std::complex<float> alpha, |
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const std::complex<float>* a, const fortran_int_t lda, |
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const std::complex<float>* x, const fortran_int_t incx, |
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const std::complex<float> beta, std::complex<float>* y, |
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const fortran_int_t incy ) { |
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BOOST_STATIC_ASSERT( (is_same<Order, tag::column_major>::value) ); |
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BLAS_CGEMV( &blas_option< Trans >::value, &m, &n, &alpha, a, &lda, x, |
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&incx, &beta, y, &incy ); |
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} |
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// |
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// Overloaded function for dispatching to |
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// * netlib-compatible BLAS backend (the default), and |
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// * complex<double> value-type. |
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// |
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template< typename Order, typename Trans > |
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inline void gemv( const Order, const Trans, const fortran_int_t m, |
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const fortran_int_t n, const std::complex<double> alpha, |
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const std::complex<double>* a, const fortran_int_t lda, |
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const std::complex<double>* x, const fortran_int_t incx, |
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const std::complex<double> beta, std::complex<double>* y, |
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const fortran_int_t incy ) { |
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BOOST_STATIC_ASSERT( (is_same<Order, tag::column_major>::value) ); |
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BLAS_ZGEMV( &blas_option< Trans >::value, &m, &n, &alpha, a, &lda, x, |
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&incx, &beta, y, &incy ); |
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} |
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#endif |
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} // namespace detail |
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// |
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// Value-type based template class. Use this class if you need a type |
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// for dispatching to gemv. |
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// |
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template< typename Value > |
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struct gemv_impl { |
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typedef Value value_type; |
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typedef typename remove_imaginary< Value >::type real_type; |
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typedef void result_type; |
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// high-level transform typedefs and functions |
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template< typename MatrixA, typename VectorX, typename VectorY > |
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static result_type transform( MatrixA& A, VectorX& x, VectorY& y, |
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const value_type alpha, const value_type beta ) { |
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invoke(); |
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} |
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// |
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// Static member function that |
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// * Deduces the required arguments for dispatching to BLAS, and |
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// * Asserts that most arguments make sense. |
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// |
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template< typename MatrixA, typename VectorX, typename VectorY > |
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static result_type invoke( const value_type alpha, const MatrixA& a, |
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const VectorX& x, const value_type beta, VectorY& y ) { |
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namespace bindings = ::boost::numeric::bindings; |
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typedef typename detail::default_order< MatrixA >::type order; |
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typedef typename result_of::trans_tag< MatrixA, order >::type trans; |
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BOOST_STATIC_ASSERT( (is_same< typename remove_const< |
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typename bindings::value_type< MatrixA >::type >::type, |
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typename remove_const< typename bindings::value_type< |
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VectorX >::type >::type >::value) ); |
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BOOST_STATIC_ASSERT( (is_same< typename remove_const< |
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typename bindings::value_type< MatrixA >::type >::type, |
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typename remove_const< typename bindings::value_type< |
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VectorY >::type >::type >::value) ); |
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BOOST_STATIC_ASSERT( (bindings::has_linear_array< MatrixA >::value) ); |
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BOOST_STATIC_ASSERT( (bindings::has_linear_array< VectorX >::value) ); |
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BOOST_STATIC_ASSERT( (bindings::has_linear_array< VectorY >::value) ); |
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BOOST_STATIC_ASSERT( (bindings::is_mutable< VectorY >::value) ); |
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BOOST_ASSERT( bindings::size_minor(a) == 1 || |
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bindings::stride_minor(a) == 1 ); |
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detail::gemv( order(), trans(), bindings::size_row_op(a, |
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trans()), bindings::size_column_op(a, trans()), alpha, |
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bindings::begin_value(a), bindings::stride_major(a), |
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bindings::begin_value(x), bindings::stride(x), beta, |
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bindings::begin_value(y), bindings::stride(y) ); |
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} |
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}; |
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// |
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// Functions for direct use. These functions are overloaded for temporaries, |
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// so that wrapped types can still be passed and used for write-access. Calls |
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// to these functions are passed to the gemv_impl classes. In the |
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// documentation, the const-overloads are collapsed to avoid a large number of |
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// prototypes which are very similar. |
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// |
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// |
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// Overloaded function for gemv. Its overload differs for |
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// |
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template< typename MatrixA, typename VectorX, typename VectorY > |
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inline typename gemv_impl< typename bindings::value_type< |
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MatrixA >::type >::result_type |
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gemv( const typename bindings::value_type< MatrixA >::type alpha, |
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const MatrixA& a, const VectorX& x, |
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const typename bindings::value_type< MatrixA >::type beta, |
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VectorY& y ) { |
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gemv_impl< typename bindings::value_type< |
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MatrixA >::type >::invoke( alpha, a, x, beta, y ); |
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} |
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} // namespace blas |
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} // namespace bindings |
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} // namespace numeric |
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} // namespace boost |
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#endif
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